I'm only halfway through Izzeldin Abuelaish's I Shall Not Hate but one thought is already resonating with me - you hurt people because you are ignorant. If I may say so, this isn't as impressive as my own observation that people being unable or unwilling to just... stop... is a major cause of harm in 2020, but I recognize that my idea is a subset of Abuelaish's more important concept.
The book itself is highly regarded; I recommend it. But I was not expecting so much of the first third to be strictly autobiographical; the book has a clear topic that seems relatable with less stage-setting, even if it's a compelling life story. In these moments, I suffer a brief moment of acknowledgement that those who insist on reading exclusively fiction have a point; a good story is never a disappointment.